Scale plate for typewriting machines



une 7, 1927.

w. E. LANE SALE PLATE FOR TYPEWRITING MACHINES Original Filed June 10. 1925 .lllllll 'l' s'tabulating purposes.

Patented June 7, 1927.

UNITED sTrEs ATE WILLIAM EDWARD LANE, OF ST. LOUIS, MISSOURI, ASSIGN OR TO UN IDIElRW' OOI) 'I YIl'zlE- WRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

SCALE PLATE FORTYPEWRITING MACHINES.

Application filed June 10, 1925, Serial No. 36,272. Renewed April 30, 1927.

for typewriting machines and particularly] to that form of such devices-which employs Its purpose is to provide means to dispense with the necessity of incising or otherwise forming on such auxiliary scales the characters of a tabular form, and to enable theuserto construct any desired form of scale by'using the improved device asa carrier for a tabular form printed or typedon paper. There are numerous instances where it would be inadvisable to provide scales of the incised or other type of factory-made scale for all the tabular forms it was desired to use, and in such instancesthe construction shown and described herein afi'ords an 1nexpensive and efficient substitute for the factory-made type of tabulating scale.

A further advantage consists in the'means provided to protect the paper forming the inner scale face, or guide, from abrasive contact with the main scale (particularly in cases where the main scale is of the incised 7 width and length of the recess, and then vice partially assembled in a typewriter scale having retaining means to receive it;

Figure 2 is an elevation of the obverse face of the device, and Figure 3 is a similar view showing its reverse face;.

Figure l is a view in section taken on the plane lines H of Figure 1, showing assembly detail.

Referring to the drawings: The invention is devisedto be used with a main typewriter scale of the type shown in the drawings, the body of which main scale is indicated by the numeral 1 and the flanges of which are indicated by the numeral 2, these flanges serv ing .to receive the present invention which consists of a flat metal plate 3, the obverse face of which is indicated by the numeral 4 rows and its reverse face by the numeral 5. The

flat plate 3has formed upon its obverse face a shallow, 1'601511111-8211" recess 6 and" upon'its reverse face a s milar recess 7, both faces being exactly alike in allrespects except for v p a differentiation 1n marklngs to distingulsh' one'from the other in use, as 'indicated by the drawing numerals 89.j The recesses 67 extend to'upper, lower-and side walls,

as shown, and are of a depth slightly less than the paper tabular form inlays 1011 indicated in the drawings as being applied toeach face of the device and secured there to by an adhesive 12. The upper and lower -'walls of the recesses 67 are spaced downwardly and upwardly with relation to the upper and lower edges of the retaining flanges 2 of the main scale 1 in which the device is assembled, thus providing a definite limit to ,the extent of the paper inlays.

In preparing the device for use as a tabulating aid, the tabular form is cut to the is secured to the plate 3 by anadhesive. I claim:

1. In a scale plate for typewritingma scale, a shallow, rectilinear, four walled re- 7 cess formed in one face of said plate, thesaid recess being adapted to receive a character- 'ized paper inlay adhesively secured to its 2.v In a scale plate for 'typewriting machines, a structure as described in claiml,

the said plate being reversible and having upon its reverse face a recess exactly simi- 

